By KAREL HOLLOWAY, The Dallas Morning News
Classrooms are becoming a lot like game shows. There are no strobe lights or studio audiences, but more and more students are using hand-held devices to “click in” with their answers to questions flashing on big screens. Students seem to love the clickers, formally called “student response devices,” because using them is a lot like playing a video game. Teachers say they like them because they give instant information about what students are learning.
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